by the rule it is 27.5 yr, because it is considered to be

来源: borisg 于 2020-05-04 12:11:34 [] [博客] [旧帖] [给我悄悄话] 阅读数 : 0 (39 bytes)
回答: Hot water tank报税折旧是多少年，5 or 27.5? 由 mominma 于 2020-05-04 11:54:16

part of the plumbing system.

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